accidental

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accidental

1. Music denoting sharps, flats, or naturals that are not in the key signature of a piece
2. Logic (of a property) not essential; contingent
3. Music a symbol denoting a sharp, flat, or natural that is not a part of the key signature
References in periodicals archive ?
reached disparate decisions on the practice's accidentalness and
inconsistent results in assessing the accidentalness of
applies an accidentalness test that the First Circuit initiated in